Milking-machine.



F. A. LANE.

MILKING MACHINE.

APPLIOATION FILED MAY 17, 1909.

951,403. Patented Mar.8,1910.

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F. A. LANE.

MILKING- MACHINE.

APPLIOATION IILED m 17, 1909.

Patented Mar. 8, 1910.

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F. A. LANE. MILKING MAGHINE.

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EREDERIC AfLANE, OF LITTLE FALLS, NEW YDE-K, ASSIGNOR T 1').

rm m m r warn? t H. BUREELL r,

COMPANY, 01? LITTLE FALLS, NEW' YORK.

MILKING-MACHINE.

Mar. t5, 19.1w.

Serial No. 496,620.

to all iii/mm it may concern:

Be. it known that l, Fnnnnnic It. .lJANE, a citizen of the United States. residing at Little Falls. in thocounty of l'lorkimer and State of ."icw York, have invented a new and useful Improvement in .ililking-Machines, oi" which the t'ollowing is a specilication.

This invention relates to that class of milking machines which comprise teat cups to which suction applied and in which each set of teat cups. usually tour, is con ncctcd with a pipe leading to the milk pail by a connector or coupling which is provided at its front or delivery end with a main suction nipple for connection with the milk pipe leading to the pail, and rearwardly of its delivery end with a plurality of nipples' for connection with the pipes leading from the teat cups to the connector. In this class of machines, the suction is usually applied to the milk pail and acts from the latter through a pulsa tor valve intermittently upon the pipe extending from the pail to the connector and from the latter through the individual pipes to the several teat cups. Air is admitted to the connector constantly for relieving the partial vacuum in the cups when the suction is cnt'otl' by the pulsator valve, but the air inlet is so restricted that the suction cltcct not .materially impaired by this admission of air when the pulsator valve is open. general character described and shown in my Patent No. 898,613, August ls, 1906.

'lhe objccts ot' this invention are to improve the c mstruction of the connector in such a way that the'suction is applied efficiently, evenly and satisfactorily to the teats, that a large chamber is provided within the connector for filtering the air which admitted to the same, that the parts of the connector can be readily separated for cleaning, and that the connector produces a noise when milk flowing through the same which is audible at a distance and serves to keep the attendr it informed to the flow of milk. l

- In the accompanyingdtawiiigs, consisting of three sheets: Figure 1 is an elevation of a. milking machine embodying this invention, the figure. representing one set of teat cups connected with the pulsator and pail by the improved connector. Fig. 2 is a longitudi- A milking machine of this i nal sectional elevation of the preferred construction of the connector. Fig. 3 is a trans verse section in line 33, Fig. 2. Fig. Lisa top plan view of the connector. 5 is Li detached perspective view of the core of the connector. Fig. (3 is a side elevation of the body portion of a. modified construction of the connector, Fig. 7 a side elevation of the core portion, Fig. 8 a side elevation of the air inlet cap. and Fig. 9 a. longitudinal sectional. elevation thereot. Fig. 10 a side elevation, and Fig. 11 a longitudinal sectional elevation of another modified construction of the connector. 12 is a de tached side elevation, partly in section, of the rear body portion of this connector, and Fig. 13 is a transverse section in line l ft-+13, Fig. 11. Fig. 14 is a longitudinal sectional elevation of another modified construction of the connector, and Fig. 15 is a. detached perspective view of the core portion of this connector. Fig. 16 is a rear elevation of another modified construction of the connector, Fig. 17 a side elevation thereof, Fig. l8 front elevation thereof withfthe body portion removed, and Fig. sectional elevation thereof. Fig. 20 is a side elevation of another modified construction of the connector, Fig. 21 is a longitudinal sectional elevation thereof, Fig. 22 is a detached perspective view of the main suction nipple thereof, and Fig. 23 is a rear elevation thereof. Fig. 24 is a longitudinal sectional elevation of another modified construction of the connector.

Like reference characters refer to like parts in theseveral figures.

represents the milk pail, 81 the pulsator mounted on the same, 32 the main suction pipe which connects the pail with a vacuum pump or other exhaust apps atus of usual construction, (not shown), 33 two main milk pipes'connectcd with the pulsator in the usual way, one pipe for each set of teat. cups 3%, 35, the individual teatflcup pipes, and 36 the connector by mean of which these individual pipes are placer in communication with the main milk pipe 33.

37 represents the body or" the connector which has the form of a horizontal cylinder and is provided at its front or delivery end with a main suction nipple, short tube or passage '38 for connection with the main 'milk pipe 33, and in its upper portion with 1.9 a longitudinal"- is drawn into the core by the two upwardly projectio front; nipples or E creases, the vaiation depending upon the connections 39 and two similar rca l vacant space 'wl'iich is unoccupied by howor connections ac, for connection .1. l l ing milk. The suction responds in this four individual teat. cup pipes 35. 'lllhtee manner automatically to a certain extent to v, however; be

nipples or connections r. ranged in any other suitable inaui The connector provided wit a hollow core which conn'iriecs a cylindrical rear {)Ol lion il and a conical or tapering i" 101142. The rea end of this core 7 3 covered by a. perforated cap 43 through. which air ction. 'T':

core is filled with cotton or other uiat ml 44 suitable for filtering the air and f l ter issues tl'irouglnan opening 41-5 in the front end or tip of the taperiro; po tion 42. This air Suppl}, opening is loca forwardly of the individual l'l'ilitsltlt'i corn nected with the teat cups between the main suction nipple and the individual n'p plcs and the stream of air issuing l mu this-a opening. into the cavity of. the conncmtmand flowing forwardly to the main suction nippic at the front end of the connector hue an injector effect and assists materially in drawing the milk from the individual. nipples into the connector and propelling; it toward the main suction nipple and ti 2 main iuilk pipe connected therewith. The space or cavity of the com'iector into which the individual nipples open taper-s or is contracted rcarwardly by rear-on of the forwardly tapering or rcaruuirdly llaring form of that portion of the core which c tcnds into that portion of the connector into which these nipples open. This rearward contraction or taper of the cavity cqualizes to a, considerable extent the auction between the front and rear pairs of individual nipplus and avoids an excc --;ive suction. on the front pair of nipples and teat cups and low suction on the roar pair. f'ln cvc ivc suction is objectitmablc because it lciuis to impair the circulation of the bloot in .the teats, cruising a hardening thereof and dis con'ifortto the cow, and an iusullicicut sue tion is objectionable because it reduces the speed with which the milk is drawn from the teats and does not milk dry'. 7

The forwardly lla tag or enlarging form of the cavity orllow space for the milk ictwccn the core and the body of the con-- ncclor also causes the milk to fill the space nicely duril'ig the suction period, as the rear nipples deliver the milk to the narrow roar part of the low space and the front nipples deliver ll milk to the wider from part which rccc and rear ulpp t than: this the suction actu with lull at: of the nipples and ice: cup:.. r flow space partly l flowing milk the suction reduced. Thc auction flow increases and grcz 2b upon all the milk both from the front women less as tho' ihc pulsator valve. The vacuum in the lnilli pail usually kept at about fifteen inches and the vacuum should vary in the teat cups from zero or slightly above during the relief period, when the suction is cut off by the pnlsator valve, to the vacuum carried v the pail when the suction is applied to tent on and no milk is flowing through .iie. connector, i /lien the milk is flowing the suction in the cups drops more or less in an'cordrmce with the flow, usually to about ten inches when the milk is flowing freely. Ti '1". drop in the. suction action on the teat cups does not, however, retard the flow of .-inilk to the pail. \Vith a pulsator valve the air current enters the cavily of the connector at the lip of the core within the annular milk current which surrounds this tip and agilalcs or vibrates this milk current. 'lhisnoise is audible at a considerable (ll.-l2lll(j(: and when it becomes diminished or cons-ca; it indicates to the operator that the dew of milk through the ('Uillltl'ifit' has become diminished or has ceased. This noise informed as to the liow of the milk from the (lllltl'tlli sets of teat cups which are in operation at the same time and it is also believed to induce the cows lo give. the milk more freely 'i lu: core is prclcrably produced seamless bv drawing it from a blank of sheet metal, and has an external moan-1alll at the junclion of its c vlisulrical and tapering portions and an external flange t? at its rear end. The body of the connector is provided with I an internal shoulder 48 which 'faces the a packing l shoulder it; of the connector. and

ill be fully relieved,

cmisidcrable distance and is probably cau ed by reason of the fact that is therefore useful in keeping the attendant.

l having ports of about onehalf of an inch is placed between these shoulders.

'nal screw hread 50 for the recepthe perforated cap $23 which is proa screw-thread 51. The cap is ivided with an inter .al 52 bdars against the flange at the the core prime plyn in ihc connector around ihe air supcore tn to keen llllG lilt I because this spa A lllS the milk ri'oin cnt cing the chamber through tl vip, particulaiduring the relief period or when 1c .ulsaior salve n ovcs very slowly,

and the? i1 prevents i c which has re- HiHlKiP-L. in ihe connector or tubes from running into ihc filter chamber when the ma chine is carried about Upon removing the cap the co e can be removed from the body of the connector and the parts can be readily cleaned.

As the air inlet is located forwardly of the individual nipples which connect with the teat cups the relieving air is acted upon by the suction before the latter reaches the individual nipples and this air "forms a cushion which p ents y excessively sud-- den or via nt a on of thesuciion onlhe i nipples and the teat cups.

the mod" onsliruction of the con- G--, the core is the connecto by 1 external screw-thread formed and an internal thread 1 formed. portion of the body. The latter rcvided with an internal shoulder 62 at front end of the screwihread 61 and the is provided with a corresponding; shoulder ii packing ring (i l is arranged between these shoulders. The rear portion o1 ihe core beyond rho rear end of the i c provided wiih an external screw 05 to which the perforated cap 43 opllcd. 1e cavity of the core flares 7 lo the rear end.

iiied construction represented ihe core is consli'ucted and at; a;

core in too rear while the ar nipples a suppeniental an "tape-s forwardly r we end of the body is provided with l l and which is located between the tapeiing core and the cylindrical wall of the connector. This supplemental deflector connects with the cylindrical wall in rear of the front nipples and the rear nipples open l through the rca poiion of this deflector, so that the milk entering from the rear nipples flows through the amiular space he'- twcen the core and the supplemental deflector, while the milk entering from the front nipples flows through the space between the deflccioiand the cylindri :al wall of the c011- neclor. The front and rear portions of the body are connected by a screw joint l3.

.ln the modified construction represented in Figs. 14- and 15, the core has the form of cure-'1 by a. screw jointv S1 in the rear wall in that case the core would not? possess the advantages resulting from the rcai'wardly contracted cavity but; would possess the advantages which result from the admission of the air within the body and at a point forwardly of the individual nipples. The rear portion of the body forms a chamber 84 for the filtering material to which the cap 43 is attached.

In the modified construction represented in Figs. 164.9, the individual nipples are all arranged at their lower ends, where they open into the. cavity of the connector, at the same distance from the front end of the connector whereby the equalization of the suctioh. upon several nipples and teat cups is greatly facilitated. The body of this connector rearwardly and is pro-, vided at its rear end with an external scrcW-thrcad 91 to which the rear head 92 is connected by screw-lluead 93. The front, nipples 94 and rear nipples 95 open through the head 92 near the periphery thereof and outside of a conical or forwardly tapering core 96 which pro iccls forwardly from the head 92 and is provided at its apex with the air supply opening 97. The head is provided. on its rear side with an exlerually tin-called collar 98 to which the perforated cap secured and which forms with the cavity of the core a receptacle for the filtering material. The milk flows from the imlividual nipples forwardly through the annular space l ictw'cen the couical body and the core and the air jet enters the cavity of the body through the opening: at the open: or tip of the core 'hich islocatod at a considerable distance forwardly of he individual nipples.

In the modified construction represented in Fl 's. 20-93, the body 100 of the connector is closed al. the rear cud and open at the fronl'. end where ii is provided with an The cavity of a practically straight tube 80 which is 59-,

producing, air supply device,

nipples 102 and rear nipples 103 open into the same. An air inlet pasage 10 extends from the rear end of the body forwardly 1 is and opens into the cavity of the body forwardly of the front nipples. The main nipple 105 is separate from the body and provided at its rear end with a flange 106 which is engaged by a screw collar 107, by means of which the main nipple is secured to the body. A packing ring 108 is interposed between the parts. a

In the modified construction represented in Fig. 24:, the same construction of parts is employed as in Figs. 20423, with the ex ception of the air inlet passage which, in Fi 24, consists of an opening 110 formed in the main nipple near the inner. end thereof. This construction and that represented in Figs. -23lacks provision for filtering the air and is inferior in that respect. The delivery end of the connector is herein designated as the front end thereof.

I claim my invention:

1. A. connector for milking machines having a main suction passage and teat cup connections and having an air supply passage opening into the cavity of the connector forwardly of said teat cup connections, substantially as set forth.

A connector for milking machines having a cavity provided with a main suction passage at its front end, teat cup connections opening into said cavity forwardly of the rear end thereof, and an air supply passage extending from the rear end of said cavity forwardly to a point adjacent to said con nections, substantially as set forth.

3. A. connector for milking machines having a main suction passage and teat; cup connections and having an air supoly passage opening into the cavity of the c ,nnector between saidniain suction passage and said teat cup connections, snbstzintially as set forth.

i. A connector for milking machines comprising a cavity having a main suction passage at its front end, teat cup connections opening into said cavity forwardly of the rear end thereof, and an air supply passage having its delivery end arranged within said cavity and adjacent to the front portions of the teat. cup connections. substantially as set forth.

connector for milking machines comprising a. main suction passage and teat cup ctmncctions and having internal means for ,piJducing an annular milk current in the connector and admitting an air current witln in said milk currcnt,'sul'istantially asset forth.

(i; A connector for milking machines com-' prising a main suction passage and tent. cup connections and having an internal, noisesubstantially as set forth.

7. A connector for milking machines having a main suction passage and teat cup connections and having a hollow core which arranged Within the cavityof the connector and is provided with means for admitting the external air and an outlet through which the air passes from the core into the milk s ace of the connector, substantially as setorth.

8. A connector for milking machines com; prising a main suction passage at the front end of the connector, teat cup connections arranged in rear of low core which tapers forwardly and is provided at its large rear end with means for admitting tht yair and at its small front end with an opening through which the air is sues into the cavity of the connector, substantially as set.- forth.

J. A connector for niilkingmachines hav ing a cavity provided with a main suction passage at its front end, teat cupconnections opening into said cavity forwardly of the 'rear end thereof, and an air supplying core extending from the rear end of said cavity forwardly into the same, substantially. as

set forth.

10. A connector for milking machines comprising a main suction passage, teat cup connections, and an air supplying core arranged within the cavity of the connector and tapering toward the main suction passage, substantially as set forth.

' 1. A connector for milking machines comprising a body having a main suction passage, teat cup connections and an internal shoulder, an air supplying core arranged within said body and provided with an external shoulder facing the internal shoulder of the body, and a cap for securing the'core on the body, substantiallv as set forth.

12. A connector for milking machines comprising a body having a main suction passage, teat cup connections and an internal shoulder, an air supplying core arranged within said body and comprising a cylindrical rear portion adapted to seat itself against said shoulder and a tapering front portion provide with an air passage at its small end, and a (.1 1

said passage, and a hola pplicd to the rear end of said body and securing the core to the same, substantially as set forth.

13. X connector for milking machines comprising a body having a main suction passage and teat cup connections, and a hollow air supplying core adapted to hold filtering material, substantially as setforth.

llf A connector for milking machines comprising a body having a main suction passage and teat cup connections, and an air supplying core arranged within, said body and having a flow space between the body and core into which said teat cup councctions open and which is contracted rearwardly from said main suction passage, substantially as set forth;

15. A connector for milking machines I the body and the core, substantially as set 10 comprising a cylindrical body having a main forth. suctlon passage at one end and teat cup (3011- ivltness my hand 1n the presence of two nectxons opamng m'to the cavlty of the body subscnbmg wltnesses.

and an air supplying core extending: for- FREDERI E wardly, from the rear and of said bociy and C L Y 'tapermg toward sand mam suctlon passage, Wrcnesses:

I thereby forming a rzirwardly contracted QHASD B. DALZELL, flow space between the cyhndmcal Wall of 'LOOMIS BURRELL. 

